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tiva: tiva_timerlow32.c: Fix nxstyle warnings 

arch/arm/src/tiva/common/tiva_timerlow32.c:

    * Fix nxstyle warnings. No functional changes.
This commit is contained in:
Nathan Hartman 2020-09-08 09:36:48 -04:00 committed by Xiang Xiao
parent 0a2c7f7ac5
commit 835d394856
1 changed files with 49 additions and 34 deletions
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83
arch/arm/src/tiva/common/tiva_timerlow32.c
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@ -60,6 +60,7 @@
/****************************************************************************
* Private Types
****************************************************************************/
/* This structure provides the private representation of the "lower-half"
* driver state structure. This structure must be cast-compatible with the
* timer_lowerhalf_s structure.
@ -70,10 +71,11 @@ struct tiva_lowerhalf_s
const struct timer_ops_s *ops; /* Lower half operations */
struct tiva_gptm32config_s config; /* Persistent timer configuration */
TIMER_HANDLE handle; /* Contained timer handle */
tccb_t callback; /* Current user interrupt callback */
tccb_t callback; /* Current user interrupt callback */
uint32_t clkin; /* Input clock frequency */
uint32_t timeout; /* The current timeout value (us) */
uint32_t clkticks; /* Actual clock ticks for current interval */
uint32_t clkticks; /* Actual clock ticks for current
* interval */
uint32_t adjustment; /* Time lost due to truncation (us) */
bool started; /* True: Timer has been started */
};
@ -81,32 +83,38 @@ struct tiva_lowerhalf_s
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/* Helper functions *********************************************************/
static uint32_t tiva_usec2ticks(struct tiva_lowerhalf_s *priv, uint32_t usecs);
static uint32_t tiva_ticks2usec(struct tiva_lowerhalf_s *priv, uint32_t ticks);
static void tiva_timeout(struct tiva_lowerhalf_s *priv, uint32_t timeout);
static uint32_t tiva_usec2ticks(struct tiva_lowerhalf_s *priv,
uint32_t usecs);
static uint32_t tiva_ticks2usec(struct tiva_lowerhalf_s *priv,
uint32_t ticks);
static void tiva_timeout(struct tiva_lowerhalf_s *priv,
uint32_t timeout);
/* Interrupt handling *******************************************************/
static void tiva_timer_handler(TIMER_HANDLE handle, void *arg, uint32_t status);
static void tiva_timer_handler(TIMER_HANDLE handle, void *arg,
uint32_t status);
/* "Lower half" driver methods **********************************************/
static int tiva_start(struct timer_lowerhalf_s *lower);
static int tiva_stop(struct timer_lowerhalf_s *lower);
static int tiva_getstatus(struct timer_lowerhalf_s *lower,
struct timer_status_s *status);
struct timer_status_s *status);
static int tiva_settimeout(struct timer_lowerhalf_s *lower,
uint32_t timeout);
uint32_t timeout);
static void tiva_setcallback(struct timer_lowerhalf_s *lower,
tccb_t callback, FAR void *arg);
tccb_t callback, FAR void *arg);
static int tiva_ioctl(struct timer_lowerhalf_s *lower, int cmd,
unsigned long arg);
unsigned long arg);
/****************************************************************************
* Private Data
****************************************************************************/
/* "Lower half" driver methods */
static const struct timer_ops_s g_timer_ops =
@ -138,7 +146,8 @@ static const struct timer_ops_s g_timer_ops =
*
****************************************************************************/
static uint32_t tiva_usec2ticks(struct tiva_lowerhalf_s *priv, uint32_t usecs)
static uint32_t tiva_usec2ticks(struct tiva_lowerhalf_s *priv,
uint32_t usecs)
{
uint64_t bigticks;
@ -166,7 +175,8 @@ static uint32_t tiva_usec2ticks(struct tiva_lowerhalf_s *priv, uint32_t usecs)
*
****************************************************************************/
static uint32_t tiva_ticks2usec(struct tiva_lowerhalf_s *priv, uint32_t ticks)
static uint32_t tiva_ticks2usec(struct tiva_lowerhalf_s *priv,
uint32_t ticks)
{
uint64_t bigusec;
@ -229,7 +239,8 @@ static void tiva_timeout(struct tiva_lowerhalf_s *priv, uint32_t timeout)
*
****************************************************************************/
static void tiva_timer_handler(TIMER_HANDLE handle, void *arg, uint32_t status)
static void tiva_timer_handler(TIMER_HANDLE handle, void *arg,
uint32_t status)
{
struct tiva_lowerhalf_s *priv = (struct tiva_lowerhalf_s *)arg;
@ -250,7 +261,8 @@ static void tiva_timer_handler(TIMER_HANDLE handle, void *arg, uint32_t status)
{
/* Calculate new ticks / dither adjustment */
priv->clkticks = tiva_usec2ticks(priv, priv->adjustment + priv->timeout);
priv->clkticks = tiva_usec2ticks(priv,
priv->adjustment + priv->timeout);
/* Set next interval interval. TODO: make sure the interval is not
* so soon it will be missed!
@ -259,7 +271,8 @@ static void tiva_timer_handler(TIMER_HANDLE handle, void *arg, uint32_t status)
#if 0 /* Too much in this context */
tiva_timer32_setinterval(priv->handle, priv->clkticks);
#else
tiva_gptm_putreg(priv->handle, TIVA_TIMER_TAILR_OFFSET, priv->clkticks);
tiva_gptm_putreg(priv->handle, TIVA_TIMER_TAILR_OFFSET,
priv->clkticks);
#endif
/* Calculate the next adjustment */
@ -284,8 +297,8 @@ static void tiva_timer_handler(TIMER_HANDLE handle, void *arg, uint32_t status)
* Start the timer, resetting the time to the current timeout,
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
*
* Returned Value:
* Zero on success; a negated errno value on failure.
@ -321,8 +334,8 @@ static int tiva_start(struct timer_lowerhalf_s *lower)
* Stop the timer
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
*
* Returned Value:
* Zero on success; a negated errno value on failure.
@ -358,8 +371,8 @@ static int tiva_stop(struct timer_lowerhalf_s *lower)
* Get the current timer status
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
* status - The location to return the status information.
*
* Returned Value:
@ -411,8 +424,8 @@ static int tiva_getstatus(struct timer_lowerhalf_s *lower,
* Set a new timeout value (and reset the timer)
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
* timeout - The new timeout value in microseconds.
*
* Returned Value:
@ -450,8 +463,8 @@ static int tiva_settimeout(struct timer_lowerhalf_s *lower, uint32_t timeout)
* Call this user provided timeout callback.
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
* callback - The new timer expiration function pointer. If this
* function pointer is NULL, then the reset-on-expiration
* behavior is restored,
@ -489,8 +502,8 @@ static void tiva_setcallback(struct timer_lowerhalf_s *lower,
* are forwarded to the lower half driver through this method.
*
* Input Parameters:
* lower - A pointer the publicly visible representation of the "lower-half"
* driver state structure.
* lower - A pointer the publicly visible representation of the
* "lower-half" driver state structure.
* cmd - The ioctl command value
* arg - The optional argument that accompanies the 'cmd'. The
* interpretation of this argument depends on the particular
@ -553,7 +566,8 @@ int tiva_timer_initialize(FAR const char *devpath,
/* Allocate an instance of the lower half state structure */
priv = (struct tiva_lowerhalf_s *)kmm_zalloc(sizeof(struct tiva_lowerhalf_s));
priv = (struct tiva_lowerhalf_s *)
kmm_zalloc(sizeof(struct tiva_lowerhalf_s));
if (!priv)
{
tmrerr("ERROR: Failed to allocate driver structure\n");
@ -562,9 +576,9 @@ int tiva_timer_initialize(FAR const char *devpath,
/* Initialize the non-zero elements of lower half state structure */
priv->ops = &g_timer_ops;
priv->ops = &g_timer_ops;
#ifdef CONFIG_ARCH_CHIP_TM4C129
priv->clkin = config->cmn.alternate ? ALTCLK_FREQUENCY : SYSCLK_FREQUENCY;
priv->clkin = config->cmn.alternate ? ALTCLK_FREQUENCY : SYSCLK_FREQUENCY;
#else
if (config->cmn.alternate)
{
@ -573,12 +587,12 @@ int tiva_timer_initialize(FAR const char *devpath,
}
else
{
priv->clkin = SYSCLK_FREQUENCY;
priv->clkin = SYSCLK_FREQUENCY;
}
#endif /* CONFIG_ARCH_CHIP_TM4C129 */
config->config.handler = tiva_timer_handler;
config->config.arg = priv;
config->config.handler = tiva_timer_handler;
config->config.arg = priv;
memcpy(&(priv->config), config, sizeof(struct tiva_gptm32config_s));
/* Set the initial timer interval */
@ -587,7 +601,8 @@ int tiva_timer_initialize(FAR const char *devpath,
/* Create the timer handle */
priv->handle = tiva_gptm_configure((const struct tiva_gptmconfig_s *)&priv->config);
priv->handle = tiva_gptm_configure((const struct tiva_gptmconfig_s *)
&priv->config);
if (!priv->handle)
{
tmrerr("ERROR: Failed to create timer handle\n");